Mass spectra (Q-TOF MS) were recorded on an Agilent 6530 ESI-Q-TOF mass spectrometer. UV spectra were measured using a Shimadzu UV-1800 spectrometer, and optical rotation data were obtained on a Jasco P-2000 polarimeter. A Gilson preparative HPLC system was used for the high-performance column chromatography (HPLC), and was equipped with binary pumps, an UV/VIS-155 detector, and a GX-271 liquid handler. HPLC separation was performed using an YMC-Pack ODS-A column (250 × 20 mm; ID, 5 μm; Japan). GC analysis was performed on a GC353B-FSL gas chromatography coupled with a flame ionization detector and BPX50 column (0.25 mm × 30 m). The semi-preparative and preparative high-performance countercurrent chromatography (HPCCC) instruments were Dynamic Extractions Spectrum and Midi, respectively, and were combined with an ECOM IOTA S 300 pump, a Sapphire 600 UV–VIS variable wavelength detector, a Teledyne Foxy R2 fraction collector, and an Eyela CCA-1111 circulatory temperature regulator. Organic solvents for column chromatography (CC) were analytical grade and purchased from Daejung Chemical and Metals (Gyunggido, Korea). Deionized H2O was produced using a Millipore Milli-Q water purification system (Millipore, Billerica, MA, USA). CH3CN, MeOH, and H2O for HPLC were obtained from Fisher Scientific Korea (Seoul, Korea). Silica gel and reversed-phase silica gel were purchased from Merck (Germany), and Sephadex LH-20 was obtained from Pharmacia Co. (Sweden).